C++ impact and status on Exercism

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C++ Track Management

This page provides the Exercism community with the information and tools needed to manage the C++ track.

Students

147,686

Submissions

1,978,489

Mentoring Discussions

13,382

The C++ track needs attention ⚠️

Building

C++ syllabus

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Help create the track syllabus: is a set of concepts and learning exercises put together to teach foundational elements of the programming language.

Next goal: Create a complete syllabus with at least 20 concepts. Find out more.

19 concepts being taught

Includes

8,790 learnt

Strings

8,790 learnt

Basics

16,032 learnt

Numbers

6,563 learnt

Namespaces

10,427 learnt

Booleans

10,782 learnt

Comparisons

5,573 learnt

If Statements

5,573 learnt

Arrays and Vectors

3,325 learnt

Loops

4,562 learnt

Classes

3,901 learnt

References

2,573 learnt

Enumerations

2,877 learnt

Switch Statements

2,877 learnt

Headers

1,896 learnt

Functions

1,358 learnt

Auto

409 learnt

Smart Pointers

409 learnt

Pointers

695 learnt

15 active learning exercises

Started

Attempts

Completions

Mentoring requests

Log Levels

12,726

92,926 (avg. 7.3)

8,790 (69.1%)

244 (1.9%)

Lasagna

22,323

92,768 (avg. 4.2)

16,032 (71.8%)

265 (1.2%)

Freelancer Rates

7,456

64,509 (avg. 8.7)

6,563 (88.0%)

79 (1.1%)

Last Will

12,630

70,178 (avg. 5.6)

10,427 (82.6%)

137 (1.1%)

Pacman Rules

11,861

63,137 (avg. 5.3)

10,782 (90.9%)

116 (1.0%)

Vehicle Purchase

5,901

37,596 (avg. 6.4)

5,573 (94.4%)

48 (0.8%)

Making the Grade

4,025

66,285 (avg. 16.5)

3,325 (82.6%)

106 (2.6%)

Interest is interesting

4,929

35,805 (avg. 7.3)

4,562 (92.6%)

48 (1.0%)

Ellen's Alien Game

4,262

31,651 (avg. 7.4)

3,901 (91.5%)

52 (1.2%)

Election Day

2,851

31,089 (avg. 10.9)

2,573 (90.2%)

43 (1.5%)

Troll the Trolls

3,204

30,409 (avg. 9.5)

2,877 (89.8%)

68 (2.1%)

Doctor Data

2,415

34,087 (avg. 14.1)

1,896 (78.5%)

48 (2.0%)

lasagna-master

1,600

21,608 (avg. 13.5)

1,358 (84.9%)

23 (1.4%)

Power of Troy

539

6,468 (avg. 12.0)

409 (75.9%)

6 (1.1%)

Speedywagon Foundation

851

7,456 (avg. 8.8)

695 (81.7%)

10 (1.2%)

Practice Exercises

Learn More

Practice Exercises are exercises designed to allow students to solve an arbitrary problem, with the aim of them making use of the concepts they have learned so far.

Synced primary repo: a61daf822655208f529cfb4c2efe8220d53da83e (Updates should be instant)

Next goal: Implement 140 practice exercises. Find out more.

84 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

111,652

296,701 (avg. 2.7)

57,178 (51.2%)

12 (0.0%)

Leap

24,657

103,731 (avg. 4.2)

13,101 (53.1%)

2,536 (10.3%)

Reverse String

14,120

91,963 (avg. 6.5)

9,148 (64.8%)

1,519 (10.8%)

Space Age

9,160

70,649 (avg. 7.7)

4,455 (48.6%)

1,152 (12.6%)

Triangle

6,198

44,249 (avg. 7.1)

3,699 (59.7%)

778 (12.6%)

Grains

4,257

29,442 (avg. 6.9)

3,396 (79.8%)

608 (14.3%)

Raindrops

8,011

56,346 (avg. 7.0)

6,485 (81.0%)

673 (8.4%)

Pangram

3,458

24,924 (avg. 7.2)

2,754 (79.6%)

496 (14.3%)

Two-Fer

3,236

13,082 (avg. 4.0)

2,673 (82.6%)

88 (2.7%)

Grade School

3,507

32,660 (avg. 9.3)

2,268 (64.7%)

236 (6.7%)

Hamming

4,980

14,922 (avg. 3.0)

4,043 (81.2%)

368 (7.4%)

Nucleotide Count

3,426

17,992 (avg. 5.3)

2,545 (74.3%)

285 (8.3%)

RNA Transcription

2,705

13,962 (avg. 5.2)

2,220 (82.1%)

175 (6.5%)

Collatz Conjecture

2,267

10,486 (avg. 4.6)

1,910 (84.3%)

56 (2.5%)

Difference of Squares

3,977

13,442 (avg. 3.4)

3,476 (87.4%)

187 (4.7%)

Nth Prime

2,561

17,400 (avg. 6.8)

1,707 (66.7%)

141 (5.5%)

Queen Attack

2,205

17,744 (avg. 8.0)

1,441 (65.4%)

117 (5.3%)

Sieve

2,158

12,703 (avg. 5.9)

1,733 (80.3%)

133 (6.2%)

Say

1,795

16,217 (avg. 9.0)

990 (55.2%)

126 (7.0%)

Gigasecond

3,048

6,466 (avg. 2.1)

2,081 (68.3%)

258 (8.5%)

Secret Handshake

1,493

7,850 (avg. 5.3)

1,219 (81.6%)

54 (3.6%)

Allergies

2,643

19,235 (avg. 7.3)

1,685 (63.8%)

98 (3.7%)

Protein Translation

1,690

11,249 (avg. 6.7)

1,398 (82.7%)

60 (3.6%)

Sum of Multiples

1,833

7,157 (avg. 3.9)

1,408 (76.8%)

74 (4.0%)

Prime Factors

1,648

6,934 (avg. 4.2)

1,338 (81.2%)

51 (3.1%)

Robot Name

1,754

12,328 (avg. 7.0)

1,209 (68.9%)

118 (6.7%)

Clock

1,314

8,103 (avg. 6.2)

754 (57.4%)

54 (4.1%)

Meetup

1,019

4,042 (avg. 4.0)

565 (55.4%)

25 (2.5%)

Beer Song

1,085

6,866 (avg. 6.3)

821 (75.7%)

35 (3.2%)

Atbash Cipher

2,364

37,611 (avg. 15.9)

1,756 (74.3%)

113 (4.8%)

Trinary

2,079

14,791 (avg. 7.1)

1,804 (86.8%)

42 (2.0%)

Binary Search

1,333

9,822 (avg. 7.4)

909 (68.2%)

43 (3.2%)

Phone Number

1,206

6,430 (avg. 5.3)

865 (71.7%)

42 (3.5%)

Series

934

4,020 (avg. 4.3)

724 (77.5%)

24 (2.6%)

Complex Numbers

1,197

7,201 (avg. 6.0)

745 (62.2%)

26 (2.2%)

Food Chain

1,047

3,295 (avg. 3.1)

753 (71.9%)

28 (2.7%)

Roman Numerals

971

3,958 (avg. 4.1)

724 (74.6%)

24 (2.5%)

Bob

3,252

23,993 (avg. 7.4)

2,618 (80.5%)

275 (8.5%)

Word Count

1,529

6,394 (avg. 4.2)

1,152 (75.3%)

93 (6.1%)

Circular Buffer

994

7,771 (avg. 7.8)

584 (58.8%)

45 (4.5%)

Crypto Square

808

6,166 (avg. 7.6)

541 (67.0%)

22 (2.7%)

ETL

1,502

3,752 (avg. 2.5)

1,220 (81.2%)

43 (2.9%)

Matching Brackets

1,346

8,678 (avg. 6.4)

1,079 (80.2%)

37 (2.7%)

Anagram

1,669

5,215 (avg. 3.1)

1,291 (77.4%)

97 (5.8%)

Binary Search Tree

1,214

6,209 (avg. 5.1)

400 (32.9%)

46 (3.8%)

Luhn

1,682

18,488 (avg. 11.0)

1,373 (81.6%)

66 (3.9%)

Acronym

1,062

4,720 (avg. 4.4)

817 (76.9%)

30 (2.8%)

Armstrong Numbers

1,677

7,864 (avg. 4.7)

1,463 (87.2%)

36 (2.1%)

Binary

1,337

5,092 (avg. 3.8)

1,067 (79.8%)

84 (6.3%)

Hexadecimal

1,613

7,978 (avg. 4.9)

1,371 (85.0%)

79 (4.9%)

Isogram

2,544

5,020 (avg. 2.0)

1,641 (64.5%)

100 (3.9%)

Pascal's Triangle

930

3,520 (avg. 3.8)

714 (76.8%)

25 (2.7%)

Perfect Numbers

425

2,662 (avg. 6.3)

358 (84.2%)

6 (1.4%)

Scrabble Score

1,282

3,720 (avg. 2.9)

987 (77.0%)

90 (7.0%)

All Your Base

917

5,406 (avg. 5.9)

622 (67.8%)

48 (5.2%)

Robot Simulator

1,316

5,425 (avg. 4.1)

750 (57.0%)

54 (4.1%)

Bank Account

693

2,959 (avg. 4.3)

340 (49.1%)

39 (5.6%)

Darts

2,353

15,249 (avg. 6.5)

2,079 (88.4%)

32 (1.4%)

Largest Series Product

389

2,678 (avg. 6.9)

297 (76.3%)

10 (2.6%)

ISBN Verifier

545

3,889 (avg. 7.1)

419 (76.9%)

13 (2.4%)

Linked List

254

2,484 (avg. 9.8)

149 (58.7%)

11 (4.3%)

Simple Linked List

746

6,219 (avg. 8.3)

477 (63.9%)

19 (2.5%)

High Scores

672

5,565 (avg. 8.3)

594 (88.4%)

12 (1.8%)

Eliud's Eggs

825

3,303 (avg. 4.0)

742 (89.9%)

14 (1.7%)

Diamond

241

1,872 (avg. 7.8)

189 (78.4%)

4 (1.7%)

Run-Length Encoding

263

2,785 (avg. 10.6)

208 (79.1%)

5 (1.9%)

Rotational Cipher

849

6,286 (avg. 7.4)

758 (89.3%)

15 (1.8%)

Resistor Color

282

1,530 (avg. 5.4)

230 (81.6%)

4 (1.4%)

Resistor Color Duo

259

1,219 (avg. 4.7)

217 (83.8%)

2 (0.8%)

Minesweeper

217

1,309 (avg. 6.0)

143 (65.9%)

2 (0.9%)

Sublist

174

1,427 (avg. 8.2)

115 (66.1%)

4 (2.3%)

Zebra Puzzle

163

810 (avg. 5.0)

67 (41.1%)

5 (3.1%)

List Ops

204

2,185 (avg. 10.7)

120 (58.8%)

4 (2.0%)

Knapsack

161

1,288 (avg. 8.0)

101 (62.7%)

2 (1.2%)

Two Bucket

154

980 (avg. 6.4)

79 (51.3%)

2 (1.3%)

Yacht

200

1,951 (avg. 9.8)

143 (71.5%)

1 (0.5%)

Kindergarten Garden

601

5,057 (avg. 8.4)

453 (75.4%)

14 (2.3%)

D&D Character

274

1,805 (avg. 6.6)

178 (65.0%)

3 (1.1%)

Spiral Matrix

177

1,178 (avg. 6.7)

106 (59.9%)

4 (2.3%)

Parallel Letter Frequency

210

950 (avg. 4.5)

108 (51.4%)

5 (2.4%)

Pig Latin

197

1,744 (avg. 8.9)

100 (50.8%)

4 (2.0%)

Rail Fence Cipher

137

1,056 (avg. 7.7)

77 (56.2%)

3 (2.2%)

Affine Cipher

254 (avg. 8.8)

15 (51.7%)

1 (3.4%)

Alphametics

439 (avg. 7.7)

13 (22.8%)

0 (0.0%)

56 unimplemented practice exercises

Baffling Birthdays

Book Store

Bottle Song

Bowling

Change

Connect

Conway's Game of Life

Custom Set

Dominoes

DOT DSL

Error Handling

Flatten Array

Flower Field

Forth

Go Counting

Grep

Hangman

House

Intergalactic Transmission

Killer Sudoku Helper

Ledger

Lens Person

Markdown

Matrix

Micro Blog

OCR Numbers

PaaS I/O

Palindrome Products

Piecing It Together

Poker

POV

Proverb

Pythagorean Triplet

Rational Numbers

React

Rectangles

Relative Distance

Resistor Color Trio

REST API

Saddle Points

Satellite

SGF Parsing

Simple Cipher

Split-Second Stopwatch

Square Root

State of Tic-Tac-Toe

Strain

Swift Scheduling

Tournament

Transpose

Tree Building

Twelve Days

Variable Length Quantity

Word Search

Wordy

Zipper

1 foregone practice exercise

Point Mutations

View data

Programming Tags

Learn More

Help manage the tags used to group, filter and recommend solutions, approaches and articles.

0 tags

Test Runner

Learn More

Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Current version: 8c716e4cc1b5dd91eb30dfe4a68c5aba2a26e2aa (Takes up to 10 mins to deploy)

Total Test Runner Runs

1,939,094

Test Run Pass Rate

16.4% (317949)

Test Run Fail Rate

24.7% (479443)

Test Run Error Rate

58.9% (1141702)

Representer

Learn More

Build a Representer: a bit of code that has the single responsibility of taking a solution and returning a normalized representation of it.

Current version: d951fcfa1de93680d5ed20b7e8bd9d116fb7960d (Takes up to 10 mins to deploy)

Total Representer Runs

335,884

Total Representation Comments Made

59,112

Feedback Given Frequency

17.6%

Analyzer

Learn More

Build an Analyzer for C++: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.

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